Abstract This work aims to estimate the voltinism differences in the studied lines and the influence of biological and environmental variables on this trait. Three Bombyx mori. lines were used. One polyvoltine (Indian, C. Nichi) and two bivoltine (Chinese6-C6 and Japanese7-J7). Silkworms were reared under controlled conditions of temperature (24±1, 26±1, 28±1°C) and photoperiod (8-16, 12-12, 16-8 light/darkness) during the life cycle. The measured biological characters were duration of larval period (DLP), larval weight on fifth day of V instar (LW(V-5)), rate of weight (RWV), duration of life cycle (DLC), fecunditiy (NE), fertility (F) and voltinism (V). Voltinism was estimated using a linear regression model; the variables that influence voltinism were found using a multiple regression analysis; and the effect of environmental conditions on change of voltinism employing an ANOVA. The results show that the variables that affect voltinism are different for each line, which demonstrates the effect of the line factor. Nichi voltinism was affected by the six measured variables, while in C6 and J7 where voltinisms depends on the duration of diapause, some variables were excluded from the model. In Indian tropical polyvoltine, the temperature was the influencing factor, while in Chinese and Japanese bivoltines lines was the photoperiod.

El conocimiento de la biología de las diferentes especies de mariposas es de gran importancia para proponer planes de desarrollo sostenible, ecoturismo, educación ambiental y conservación de ecosistemas. En este estudio de factibilidad de cría se suministra información sobre la supervivencia bajo dos sistemas de cría, in situ y ex situ, de Pteronymia zerlina y P. medellina. Se realizó colección manual de los estados inmaduros de las mariposas. Para la cría in situ, se identificaron en el bosque plantas huésped con huevos y se realizó el seguimiento del ciclo de vida allí. Para la cría ex situ se coleccionaron huevos y se transportaron a un laboratorio de cría. La factibilidad de cría se determinó por medio de tasas de mortalidad y tasas de supervivencia. La cría ex situ de P. zerlina presentó el 64,7% de supervivencia, e in situ 22,9%. La cría ex situ de P. medellina presentó 63% y 42% bajo condiciones in situ. La cría ex situ mostró mayores probabilidades de cría.

Knowledge of the biology of the different species of butterflies is of great importance to propose plans of sustainable development, ecotourism, environmental education and conservation of ecosystems. In this study of breeding feasibility, information is provided on survivability under two breeding systems, in situ and ex situ, of Pteronymia zerlina and P. medellina. A manual collection of the immature butterfly stages was conducted. For the in situ breeding, host plants with eggs were identified in the forest and the life cycle was followed there. For the ex situ breeding, eggs were collected and transported to a breeding laboratory. The breeding feasibility was determined by means of mortality rates and survival rates. The ex situ breeding of P. zerlina presented 64.7% survival and the in situ 22.9%. The ex situ breeding of P. medellina presented 63% and 42% under in situ conditions. The ex situ breeding showed higher breeding probabilities.

En este estudio se pretende realizar un análisis sobre la diversidad, similitud y complementariedad de una comunidad de mariposas diurnas en el Corredor biológico Munchique-Pinche, ubicado en el departamento del Cauca, teniendo en cuenta la variación altitudinal en tres zonas dentro del corredor, en un gradiente altitudinal distribuido desde los 1500 a los 3300 m. Se empleó como metodología de captura el uso de redes entomológicas manuales y trampas cebadas Van Someren-Rydon. Como resultado se registran 111 especies de 57 géneros y 5 familias, en 881 capturas. El registro de mayor diversidad se encontró para el gradiente ubicado en un intervalo entre los 1500 y 2000 m, donde se encuentra la zona más conservada y de menor intervención antrópica. Dentro del corredor, se notó una disminución de la diversidad en función de la altura y teniendo en cuenta los valores de complementariedad y de similaridad, y se concluye que existe una exclusividad de especies para cada sitio y que su distribución está determinada tanto por la altura como por la disponibilidad del recurso alimenticio.

This study intends to carry out an analysis on the diversity, similarity and complementarity of a day-butterfly community in the Munchique-Pinche Biological Corridor, located in the Department of Cauca. The altitudinal variation of the three areas inside the corridor was considered implementing an altitudinal gradient distributed from 1500 to 3300 m. The capturing methods used were entomological nets and Van Someren-Rydon traps. They registered 111 species of 57 genera and 5 families in 881 captures. The record for the most diversity was for the gradient located in the interval 1500 to 2000 m, corresponding to the best conserved area and the one with lesser anthropic intervention. Within the Corridor, a decrease in diversity related to the altitude was observed; and considering the complementarity and similarity values, it was concluded that there is an exclusivity of species for each site and that its distribution is determined by the height, as well as by the availability of food.